import java.util.HashMap;
import java.util.Map;
import java.util.PriorityQueue;

public class Test3 {
    public static void main(String[] args) {
        Map<Integer ,Integer> map = new HashMap<>();
        PriorityQueue<Double> priorityQueue = new PriorityQueue<>();
        priorityQueue.add(1.0) ;
        priorityQueue.add(2.0) ;
        System.out.println(priorityQueue.peek());
        int[] arr = {1,2} ;

    }
}
